Bone screw



FIG. 1 is a perspective view of a front side of the bone screw showing my new design.

FIG. 2 is a perspective view of a rear side thereof.

FIG. 3 is an elevational view of the front side thereof.

FIG. 4 is an elevational view of the rear side thereof.

FIG. 5 is an elevational view of a first lateral side thereof.

FIG. 6 is an elevational view of a second lateral side thereof.

FIG. 7 is top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken line portions of the disclosure are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a bone screw, as shown and described herein. 